Executive brief
The Windows Volume Manager Extension Driver is a core system component that manages storage volumes and disk partitioning. A heap-based buffer overflow vulnerability allows a remote attacker to execute arbitrary code on an affected system with no authentication required, potentially compromising the entire computer and enabling data theft, system takeover, or deployment of malware.
Technical details
A heap-based buffer overflow exists in the Windows Volume Manager Extension Driver that fails to properly validate input data, allowing an attacker to overflow heap memory and corrupt critical data structures. The vulnerability is remotely exploitable over the network without authentication. By sending a specially crafted network request, an attacker can trigger the buffer overflow, overwrite heap objects, and achieve arbitrary code execution with kernel privileges. A patch is expected from Microsoft through their standard security update process.
Affected products
- Microsoft Windows <UNKNOWN>
Timeline
- 2026-09-08: disclosed